Installation Instructions
Furnace Is Shipped In Six Packages:
1. Fur
nace heat exchanger, complete with fire door.
2. Blower section (can be mounted left or right hand)
complete with blower, miscellaneous parts bag, filters.
3. Burner with flame retention head and oil combustion
safety control;
Field wiring junction box with transformer, solid fuel
relay, blower wiring harness, burner cable and fan limit
control with support;
Belt and pulleys;
Solid fuel damper motor;
Thermostats for solid fuel and oil;
Smoke baffle tool;
Blower motor;
Draft regulator;
4,5, & 6
Three cartons containing a total of 30 firebricks.
Installation Of The Combination Fur
nace
Clearance to Combustibles
T
op plenum
6”
Front Side Wood
48”
One Side
6”
Oil Burner rear side
24”
Flue Pipe
18”
Other Side
24”
Base or Floor non-combustible
Duct work may be reduced to 2” at 72” from plenum
Caution:
Flue Pipe to Contr
ols - 12”
Location
Refer to C.S.A. B139 “CODE FOR INST
ALLATION OF
OIL BURNER EQUIPMENT” for recommended installation
practices. Consider the following before placing the fur-
nace;
The furnace should be centrally located in relation to the
outlet registers, with large warm air ducts, for improved
heat distribution during electrical power failures, when the
furnace has to work on the gravity principle.
The flue connection to the chimney should be short and
direct and consist of as few elbows as possible.
Sufficient space must be provided for access to the burn-
er, the controls, and along one side and at the rear of the
unit to provide access to the filters and blower. See above
for required clearances.
To ensure an easy installation of the two part furnace,
prepare a cement pad size 50” X 45” at least 2” thick, as
level as possible. It makes alignment of the two parts
easier.
In all cases, local building codes should be observed.
Duct Connection
The return air duct connection should be tight, so that the
blower cannot draw air from he furnace room which can
interfere with the combustion air supply. A plenum cham-
ber or an elbow type connection may be used. Sufficient
air flow must be provided for efficient operation. An open-
ing into the furnace room should be made to the outdoors
if there is not sufficient air infiltration. The equipment has
to be installed in accordance with the standards of the
National Board of Fire Fire Underwriters. Authorities who
have jurisdiction should be consulted before installations
are made.
MBFU Standar
ds Include:
Standards for the installation of oil burning equipment.
NBFU No. 31.
Standards for the installation of air conditioning, warm
air heating and ventilating system. NBFU No. 90.
Building code standards for the installation of heat-pro-
ducing appliances, heating, ventilating, air conditioning,
blower and exhaust systems.
Chimney and Flue Pipe
The chimney should be thoroughly inspected and cleaned
to ensure safe furnace operation.
It is very important that the chimney has an adequate
capacity and develops a good draft for proper combustion.
.03 to .05 inches WC at the flue connection of the fur
-
nace, and .01 to .03 inches draft over the fire. Maximum
chimney draft should never exceed - 0.03” WC since a
power failure could cause wood fire to burn out of con-
trol. Minimum inside chimney 64 sq. inches.
The flue pipe must be full size and not lighter than No. 24
gauge black iron pipe. The flue pipe connection should
be short and direct with as few elbows as possible and
should slope up toward chimney. Make certain the flue
pipe or thimble does not project into the chimney flue. All
sections of the flue pipe should be fastened with sheet
metal screws. Under no circumstances should the flue
pipe contain a hand-operated damper.
W
arning:
Do not mount flue pipe close to or in fr
ont of
limit and operating controls.
Draft Regulator:
The draft r
egulator may be located on either the vertical
or horizontal section of the flue pipe. The best location is
18” from the furnace flue outlet. The regulator must be
level (without leaning forward or backward) and the pivot-
ing axis has to be horizontal. Follow instructions for
installation which is supplied with the Draft Regulator.
